If BTC really dominates our world, will 2.4 quadrillion satoshis be enough for the blockchain functionality to run other applications ? What will happen when limit approaches?
the maximum amount of bitcoin that will exist eventually will be 21 million bitcoin which you can multiply by 10^8 to get the satoshi equivalent which you can never get 2.4 !!
so we will have 2.1*10^14
2.4 quadrillion is 2.4 * 10^15 or 2.4 * 10^24 (depending on what scale you are using) none of which is true here.